Module: DNApi::ComponentPossessor

Included in:
App, Environment, Instance
Defined in:
lib/dnapi/component_possessor.rb

Defined Under Namespace

Modules: Ext Classes: ComponentAttachmentError

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(receiver) ⇒ Object 



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# File 'lib/dnapi/component_possessor.rb', line 34

def self.included(receiver)
  receiver.extend(Ext)
  receiver.send :many, :components
end

Instance Method Details

#add_component(key, component_options = {}) ⇒ Object 



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# File 'lib/dnapi/component_possessor.rb', line 39

def add_component(key, component_options={})
  unless klass = Component[key.to_sym]
    raise Component::NoSuchComponent, "unknown component #{key.inspect}"
  end
  c = klass.new(component_options.merge(:parent => self))
  unless c.can_belong_to?(self)
    raise ComponentAttachmentError, "Can't attach #{key.inspect} to a #{self.class}"
  end

  components << c
  c
end

#component(key) ⇒ Object 



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# File 'lib/dnapi/component_possessor.rb', line 25

def component(key)
  components.detect {|c| c.key == key }
end

#component_group(group_key) ⇒ Object 



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# File 'lib/dnapi/component_possessor.rb', line 29

def component_group(group_key)
  component_keys = self::class.component_group_map[group_key.to_sym] || []
  component_keys.map {|key| components.select {|c| c.key == key } }.flatten
end

#has_component?(key) ⇒ Boolean Also known as: component?

Returns:

  • (Boolean) 


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# File 'lib/dnapi/component_possessor.rb', line 19

def has_component?(key)
  components.any? {|c| c.key == key }
end